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Questions tagged [java-mission-control]

Java Mission Control is an advanced set of tools that enables efficient and detailed analysis of the extensive of data collected by Java Flight Recorder. The tool chain enables developers and administrators to collect and analyze data from Java applications running locally or deployed in production environments.

Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. Java Flight Recorder is a profiling and event collection framework built into the Oracle JDK. It allows Java administrators and developers to gather detailed low level information about how the Java Virtual Machine (JVM) and the Java application are behaving. Java Mission Control is an advanced set of tools that enables efficient and detailed analysis of the extensive of data collected by Java Flight Recorder. The tool chain enables developers and administrators to collect and analyze data from Java applications running locally or deployed in production environments.

See http://www.oracle.com/technetwork/java/javaseproducts/mission-control/java-mission-control-1998576.html

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Magnify Y axis in Java Mission Control charts

I recently recorded a Java Flight Recorder (JFR) dump of a java program. When I opened it using Java Mission Control (JMC), I could adjust the X axis but not Y (In many graphs). I tried flipping my screen (ctrl + alt + arrow key) and it worked ;-)…
Eranga Heshan
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Jrockit Stacktrace

I need to know how to export stack traces from JRockit or atleast expand all traces. Open a jfr file in Oracle JRockit Mission Control Go to Events Tab Click on Stack Traces Is there any way we can expand all the stack traces at once and explore the…
Arjun M
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JMC parser for Java JFR dumps using Jrockit

I got to know that parsing JFR into Java can be done by unsupported parsers like JMC parser using jrockit from this. Also I figured during the flight recording there will be lot of events captured. If I want to retrieve data values from various…
Vithulan
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Java Mission Control - record mbean values

Is it possible to record mbeans values using Flight recorder? When I am monitoring my server in mbean mode I plot java.lang.management.OperatingSystemMXBean.getSystemLoadAverage() which works great. I would also like to get this value in flight…
user3364192
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What does "block count" mean in Oracle Mission Control?

What does this column exactly mean? I didn't find good explanation
mystdeim
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Glassfish requires a new jmx role for java mission control

I have been trying out java mission control's flight recording feature with glassfish 3.1.2.2 but having been facing issues in connecting to the remote jvm using jmx. By default glassfish starts a JMXConnector listening at a preconfigured port -…
Andy Dufresne
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Java Mission Control: Flight Recorder throws: javax.naming.ServiceUnavailableException

I am trying to profile a Java Spring application with the Oracle Java Mission control. I have the JVM Connection configured as: localhost:7091 and I started the application with java -Dcom.sun.management.jmxremote.rmi.port=7091 -jar app.jar. When I…
achingfingers
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What do GC Pause and GC Cycles mean in JDK Misson Control using ZGC and ShenandoahGC?

When using Serial, Parallel or G1 GCs I can directly see their Collection Counts and accumulated times. However when using ZGC and ShenandoahGC it shows two different Counts and Times for each - for Pause and for Cycles. Which one of these is the…
TKret96
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JavaFX plugin for JDK Mission Control doesn't work

I installed JDK Mission Control 8.3.0+b05 + JavaFx plugin using Help->Install New Sofrware... Then I do Start Flight Recording... for 10-50 sec, as result I see info in all the sections except JavaFX I use JavaFX 19.0.2.1 OpenJDK 11.0.15 Do you…
Alexey Gulev
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Why does Mission Control show a different GC time to the GC log for a given GC ID?

Mission Control shows: GC ID: 301 GC Duration: 2.595 s For id 301, the log shows: [2023-03-02T14:55:45.298+0000][info ][gc,cpu ] GC(301) User=24.55s Sys=0.85s Real=0.64s I have 2.59s (which would be 2.595 truncated and not rounded to 2.60)…
doc
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How to find most time consuming method with java mission control? (not specificly CPU)

I have a spring batch app that's runs on tomcat 8.5. This batch works with lots of data such as ten Million records and it is too slow. I want to find most time consuming parts such as database queries E.G, socket IO, thread blocking or waiting, CPU…
hamidreza75
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Can I analyze .hprof file with Java code?

I just learned Java Mission Control. I thought about how to make Java Flight Recorder with Java code. I analyzed the heap file with lots of different tools, but this time I want to do it with code.
Mike Wheatstone
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Garbage Collection statistics in Java Flight Recorder result

We have a job in our CI that kicks off our Java app and run some test (the test acts as a client to the app). The app is started with what I think is the correct JVM option to do continuous flight recording: -XX:+UnlockCommercialFeatures…
caffeine_inquisitor
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Java Mission Control Listener?

I currently have some Java code that I would like to profile. I decided to use Java Mission Control after reading some promising things about it. However, every resource I've consulted so far tells me to first start the process I want to profile…
information_interchange
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Connect to a remote Linux JVM running under different user

I have Apache NiFi 1.2.0 running on a RHEL7, remote VM. Following is the list of running JVMs : bash-4.2$ ./jps 1043 RunNiFi 1062 NiFi 14810 Jps On my local Windows 7 machine, I have jdk1.8.0_121 and I am trying to connect the Java Mission Control…
Kaliyug Antagonist
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